libraries

Prodigy Game EngineA 2D Game Engine Made On Top Of Pygame. Very Easy To Use And Good For Making RPGS And Arcade games.

fabulaFabula is an Open Source Python Game Engine suitable for adventure, role-playing and strategy games and digital interactive storytelling.

Gummworld2Gummworld2 is a light pygame framework for a scrolling game, where the map is larger than the display. It emphasizes simplicity, freedom, and performance.

PyGame Text UtilitiesPyGame Text Utilities is a package that will allow PyGame developers to easily implement text-based systems into their PyGame programs. This includes the formatting and layout of text, advanced text layout, and the ease of creating interactive text functions such as menus and on-screen displays. Text Tools will allow developers to present their users with dialog and information in a systematic and simplified way.

Simple Sprite RendererSimple Sprite Renderer is an abstraction layer on top of pygame that handles the low level drawing work for you.

zModuleThis module provides a very simple to use game engine and various stuffs to make a simple GUI for pygame.

Astral NetworkingAstral networking is a high level multiplayer programming library. It can use PodSixNet or Mastermind for messaging. It's focus is on solid multiplayer algorithms to help set up realtime multiplayer games without any fuss.

Txtlib is a useful library to print text on the screen. It support basic text formatting. Just set area, text and format options!!!

PyGL3DisplayPyGL3Display is a high performance, OpenGL, 2D sprite library for Python/Pygame with a simple API not too dissimilar to Pygames. It requires slightly more recent hardware than other libraries, but it is "breaks the Pygame FPS counter" fast*.

Vizier-Xrectsvizier: a package for managing sprites and the screen, provides scrolling, scaling, and collision response.
xrects: a package for polygons. uses the pygame rect as the axis aligned bounding box (AABB), and subclasses the rect to add the polygon object and methods for collision detection.

Opossum EngineAdvanced 2d Game Engine with physics courtesy of pyBox2d.